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87results about How to "Water repellent" patented technology

Grey brick mechanically manufactured from lime sludge and construction wastes and method for manufacturing same

The invention discloses a gray brick mechanically manufactured from lime sludge and construction wastes and a method for manufacturing the same. The materials for mechanically manufacturing the gray brick comprise the following raw materials in portion by weight: 1,015 to 1,135 portions of construction waste crushed materials, 240 to 290 portions of cement, 810 to 1,010 portions of lime sludge, 60 to 75 portions of gray lime, and 100 to 125 portions of water, wherein the particle size of the construction waste crushed materials is less than 15 millimeters. If necessary, less than 20 portions of fly ash and proper amount of activating agent can be added to the materials. The method for mechanically manufacturing gray brick comprises the following steps: firstly, crushing the construction wastes; secondly, mixing the construction waste crushed materials with the other materials according to the proportions; and thirdly, pressing the mixture by adopting a mechanical method so as to produce the gray brick of the invention. The gray brick and the method for manufacturing the same recycle the sludge and the construction wastes in a reducing, harmless and resource-utilizing mode, and solve the problem that substituting materials and products are hard to find after clay bricks are forbidden to use and the problem of gray brick sources for civilian constructions.
Owner:梁林华 +1

Supercritical fluid preparation method of nano-silver-coated textile fabric

The invention belongs to the field of multifunctional textile fabrics, and particularly relates to a nano-silver-coated textile fabric which has the multiple functions such as the catalytic degradation property, the ultraviolet resistance and the water repellency. The invention further provides a preparation method of the nano-silver-coated textile fabric. The nano-silver-coated textile fabric is prepared from silver nitrate, a reducing agent, a stabilizing agent and a textile fabric, wherein the mass ratio of the reducing agent to silver nitrate is 500-50, the mass ratio of the stabilizing agent to silver nitrate is 0.1-10, and 5 g-50 g of silver nitrate is used in every square meter of the textile fabric. According to the preparation method, the nano-silver-coated textile fabric is prepared by adopting a supercritical fluid technique, the textile fabric is treated for 10-100 min under the condition that the pressure is 7 Mpa-30 Mpa and the temperature is 20 DEG C-100 DEG C and then taken out, washed and dried. The textile surface is obtained by depositing nano-silver in supercritical carbon dioxide, the advantages of being environmentally friendly, high in production efficiency and nano-silver binding force, good in repeatability and the like are achieved, and the obtained nano-silver-coated textile fabric as the functions such as the catalytic degradation property, the ultraviolet resistance and the water repellency.
Owner:SICHUAN UNIV

Preparation method of ultrafine dry powder extinguishing agent with good water repellency

The invention discloses a preparation method of an ultrafine dry powder extinguishing agent with good water repellency. The preparation method comprises the following steps: gypsum, carbon nanotubes,phosphomolybdic acid and magnesium carbonate powder are uniformly mixed for drying and grinding to obtain precast materials; the precast materials are preheated; sodium bicarbonate, monoammonium phosphate, alum compounds, magnesium carbonate powder and ammonium sulfate are added in sequence in a stirring state for continuous stirring; silicone oil is sprayed inside in the stirring state for continuous stirring; pentaerythritol is added for continuous stirring; and the ultrafine dry powder extinguishing agent with good water repellency is obtained through drying, crushing and screening. The alum compounds are prepared by adopting the following process: alums are added in ethanol solution for uniform mixing; liquid paraffin is added for heat stirring, filtering and spray stirring; magnesiumstearate, pentaerythritol and white oil are added in sequence in the stirring state for uniform stirring; and the alum compounds are obtained through cooling. The preparation method is simple and lowin production cost; and the prepared dry powder extinguishing agent is excellent in fire extinguishing performance, and achieves excellent water repellency, fluidity and caking resistance.
Owner:BENGBU LONGTAI FIRE FIGHTING

Preparation technology and device for waterproof and antifreezing artificial turf provided with pattern

InactiveCN106320142AExcellent waterproof and antifreeze performanceImprove performanceAntifouling/underwater paintsPaints with biocidesEmulsionStatic performance
The invention provides a preparation technology for waterproof and antifreezing artificial turf provided with a pattern. The preparation technology comprises the following steps: (1) a controller transmits a designed pattern to a loom through a weaving instruction; (2) the loom starts tufting after receiving the weaving instruction, a tufting finished product passes through a carpet feeder and enters a gluing machine to be glued; an adhering emulsion injection machine is arranged at a tufting finished product outlet of the loom, an injection port of the adhering emulsion injection machine aligns at the tufting finished product at an outlet of the loom, and the tufting finished product is fed through the carpet feeder into the gluing machine to be glued after an adhering emulsion is injected to the tufting finished product by the adhering emulsion injection machine; (3) glued artificial turf enters a drying oven to be dried through a conveying chain. The service life can be prolonged two-three times, the artificial turf has anti-static performance, heat absorption and insulation, surface water repellency, mould proofness, sterilization and soil resistance, the water repellency of the artificial turf is 3-5 times that of common artificial turf, and grass does not get hard when the artificial turf is placed in an environment at the temperature of subzero 1-15 DEG C and does not get frozen after the rain.
Owner:江蘇聯創人造草坪股ふん有限公司
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